Best for tourism. We can see in our surrounding that people love to go to the natural places for visit and in this regard they need a group of people. But this is a big problem when you need people to make a reasonable group so that you could buy a van. So in this context this is a great app:

Somo - Fun car sharing app

I love it and will share to my friends and family. Very good search @cryptoewp. Keep it up